1. Department of Earth Science; University of Bergen; PO Box 7803 5020 Bergen Norway
2. K.G. Jebsen Centre for Deep Sea Research; University of Bergen; Norway
3. Bjerknes Centre for Climate Research; University of Bergen; Norway
4. Centre for Ecological & Evolutionary Synthesis; Department of Biosciences; University of Oslo; PO Box 1066 Blindern 0316 Oslo Norway
5. Natural History Museum; University of Oslo; Norway